Analysis

  • max time kernel
    146s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    28-06-2022 14:54

General

  • Target

    Dridex_a7efe0ee7f8d77a65b1fff3ba0cee76acb43223365dc348fa43ceecf93bcf7f0.dll

  • Size

    532KB

  • MD5

    5c9f3e803604beb0fd134699e214db4c

  • SHA1

    3e775ec10dce6ce1bfc8c7aa299eef7e762c5fcc

  • SHA256

    a7efe0ee7f8d77a65b1fff3ba0cee76acb43223365dc348fa43ceecf93bcf7f0

  • SHA512

    b9a1d3d646c998e8406698c3e4a25827de905f65cdd940cfaa396aa9d16ef9773fc0f6af29b68b697d7eee54004fdac431a09706877bd97f0a5c409d735f2a13

Malware Config

Extracted

Family

dridex

Botnet

22201

C2

144.91.122.102:443

85.10.248.28:593

185.4.135.27:5228

80.211.3.13:8116

rc4.plain
rc4.plain

Signatures

  • Dridex

    Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.

  • Dridex Loader 1 IoCs

    Detects Dridex both x86 and x64 loader in memory.

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\Dridex_a7efe0ee7f8d77a65b1fff3ba0cee76acb43223365dc348fa43ceecf93bcf7f0.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4132
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\Dridex_a7efe0ee7f8d77a65b1fff3ba0cee76acb43223365dc348fa43ceecf93bcf7f0.dll,#1
      2⤵
        PID:3384
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3384 -s 624
          3⤵
          • Program crash
          PID:4660
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3384 -ip 3384
      1⤵
        PID:4180

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/3384-130-0x0000000000000000-mapping.dmp
      • memory/3384-131-0x00000000753A0000-0x0000000075427000-memory.dmp
        Filesize

        540KB

      • memory/3384-133-0x0000000001340000-0x0000000001346000-memory.dmp
        Filesize

        24KB